1
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Mohan M, Mannan A, Singh TG. Therapeutic implication of Sonic Hedgehog as a potential modulator in ischemic injury. Pharmacol Rep 2023:10.1007/s43440-023-00505-0. [PMID: 37347388 DOI: 10.1007/s43440-023-00505-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 06/05/2023] [Accepted: 06/07/2023] [Indexed: 06/23/2023]
Abstract
Sonic Hedgehog (SHh) is a homology protein that is involved in the modeling and development of embryonic tissues. As SHh plays both protective and harmful roles in ischemia, any disruption in the transduction and regulation of the SHh signaling pathway causes ischemia to worsen. The SHh signal activation occurs when SHh binds to the receptor complex of Ptc-mediated Smoothened (Smo) (Ptc-smo), which initiates the downstream signaling cascade. This article will shed light on how pharmacological modifications to the SHh signaling pathway transduction mechanism alter ischemic conditions via canonical and non-canonical pathways by activating certain downstream signaling cascades with respect to protein kinase pathways, angiogenic cytokines, inflammatory mediators, oxidative parameters, and apoptotic pathways. The canonical pathway includes direct activation of interleukins (ILs), angiogenic cytokines like hepatocyte growth factor (HGF), platelet-derived growth factor (PDGF), vascular endothelial growth factor (VEGF), epidermal growth factor (EGF), and hypoxia-inducible factor alpha (HIF-), which modulate ischemia. The non-canonical pathway includes indirect activation of certain pathways like mTOR, PI3K/Akt, MAPK, RhoA/ROCK, Wnt/-catenin, NOTCH, Forkhead box protein (FOXF), Toll-like receptors (TLR), oxidative parameters such as GSH, SOD, and CAT, and some apoptotic parameters such as Bcl2. This review provides comprehensive insights that contribute to our knowledge of how SHh impacts the progression and outcomes of ischemic injuries.
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Affiliation(s)
- Maneesh Mohan
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, 140401, India
| | - Ashi Mannan
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, 140401, India
| | - Thakur Gurjeet Singh
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, 140401, India.
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2
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Paro MR, Chakraborty AR, Angelo S, Nambiar S, Bulsara KR, Verma R. Molecular mediators of angiogenesis and neurogenesis after ischemic stroke. Rev Neurosci 2022; 34:425-442. [PMID: 36073599 DOI: 10.1515/revneuro-2022-0049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 07/22/2022] [Indexed: 11/15/2022]
Abstract
The mechanisms governing neurological and functional recovery after ischemic stroke are incompletely understood. Recent advances in knowledge of intrinsic repair processes of the CNS have so far translated into minimal improvement in outcomes for stroke victims. Better understanding of the processes underlying neurological recovery after stroke is necessary for development of novel therapeutic approaches. Angiogenesis and neurogenesis have emerged as central mechanisms of post-stroke recovery and potential targets for therapeutics. Frameworks have been developed for conceptualizing cerebral angiogenesis and neurogenesis at the tissue and cellular levels. These models highlight that angiogenesis and neurogenesis are linked to each other and to functional recovery. However, knowledge of the molecular framework linking angiogenesis and neurogenesis after stroke is limited. Studies of potential therapeutics typically focus on one mediator or pathway with minimal discussion of its role within these multifaceted biochemical processes. In this article, we briefly review the current understanding of the coupled processes of angiogenesis and neurogenesis after stroke. We then identify the molecular mediators and signaling pathways found in pre-clinical studies to upregulate both processes after stroke and contextualizes them within the current framework. This report thus contributes to a more-unified understanding of the molecular mediators governing angiogenesis and neurogenesis after stroke, which we hope will help guide the development of novel therapeutic approaches for stroke survivors.
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Affiliation(s)
- Mitch R Paro
- University of Connecticut School of Medicine, 200 Academic Way, Farmington, CT 06032, USA.,Department of Neuroscience, University of Connecticut School of Medicine, 263 Farmington Avenue, Farmington, CT 06032, USA
| | - Arijit R Chakraborty
- University of Connecticut School of Medicine, 200 Academic Way, Farmington, CT 06032, USA
| | - Sophia Angelo
- University of Connecticut School of Medicine, 200 Academic Way, Farmington, CT 06032, USA
| | - Shyam Nambiar
- University of Connecticut, 75 North Eagleville Rd, Storrs, CT 06269, USA
| | - Ketan R Bulsara
- University of Connecticut School of Medicine, 200 Academic Way, Farmington, CT 06032, USA.,Division of Neurosurgery, University of Connecticut Health, 135 Dowling Way, Farmington, CT 06030, USA
| | - Rajkumar Verma
- University of Connecticut School of Medicine, 200 Academic Way, Farmington, CT 06032, USA.,Department of Neuroscience, University of Connecticut School of Medicine, 263 Farmington Avenue, Farmington, CT 06032, USA
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3
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Yanev P, van Tilborg GA, van der Toorn A, Kong X, Stowe AM, Dijkhuizen RM. Prolonged release of VEGF and Ang1 from intralesionally implanted hydrogel promotes perilesional vascularization and functional recovery after experimental ischemic stroke. J Cereb Blood Flow Metab 2022; 42:1033-1048. [PMID: 34986707 PMCID: PMC9125493 DOI: 10.1177/0271678x211069927] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Injectable hydrogels can generate and support pro-repair environments in injured tissue. Here we used a slow-releasing drug carrying in situ-forming hydrogel to promote post-stroke recovery in a rat model. Release kinetics were measured in vitro and in vivo with MRI, using gadolinium-labeled albumin (Galbumin), which demonstrated prolonged release over multiple weeks. Subsequently, this hydrogel was used for long-term delivery of vascular endothelial growth factor (VEGF) and angiopoietin-1 (Ang1) (Gel VEGF + Ang1, n = 14), in a photothrombotically induced cortical stroke lesion in rats. Control stroke animals were intralesionally injected with saline (Saline, n = 10), non-loaded gel (Gel, n = 10), or a single bolus of VEGF + Ang1 in saline (Saline VEGF + Ang1, n = 10). MRI was executed to guide hydrogel injection. Functional recovery was assessed with sensorimotor function tests, while tissue status and vascularization were monitored by serial in vivo MRI. Significant recovery from sensorimotor deficits from day 28 onwards was only measured in the Gel VEGF + Ang1 group. This was accompanied by significantly increased vascularization in the perilesional cortex. Histology confirmed (re)vascularization and neuronal sparing in perilesional areas. In conclusion, intralesional injection of in situ-forming hydrogel loaded with pro-angiogenic factors can support prolonged brain tissue regeneration and promote functional recovery in the chronic phase post-stroke.
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Affiliation(s)
- Pavel Yanev
- Biomedical MR Imaging and Spectroscopy Group, Center for Image Sciences, University Medical Center Utrecht and Utrecht University, Utrecht, Netherlands
| | - Geralda Af van Tilborg
- Biomedical MR Imaging and Spectroscopy Group, Center for Image Sciences, University Medical Center Utrecht and Utrecht University, Utrecht, Netherlands
| | - Annette van der Toorn
- Biomedical MR Imaging and Spectroscopy Group, Center for Image Sciences, University Medical Center Utrecht and Utrecht University, Utrecht, Netherlands
| | - Xiangmei Kong
- Department of Neurology, University of Kentucky, Lexington, Kentucky, USA
| | - Ann M Stowe
- Department of Neurology, University of Kentucky, Lexington, Kentucky, USA
| | - Rick M Dijkhuizen
- Biomedical MR Imaging and Spectroscopy Group, Center for Image Sciences, University Medical Center Utrecht and Utrecht University, Utrecht, Netherlands
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4
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Circulating miRNA-195-5p and -451a in Patients with Acute Hemorrhagic Stroke in Emergency Department. Life (Basel) 2022; 12:life12050763. [DOI: 10.3390/life12050763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/12/2022] [Accepted: 05/17/2022] [Indexed: 12/14/2022] Open
Abstract
(1) Background: In our previous study, acute ischemic stroke (AIS) patients showed increased levels of circulating miRNAs (-195-5p and -451a) involved in vascular endothelial growth factor A (VEGF-A) regulation. Here, we evaluated, for the first time, both circulating miRNAs in acute intracerebral hemorrhagic (ICH) patients. (2) Methods: Circulating miRNAs and serum VEGF-A were assessed by real-time PCR and ELISA in 20 acute ICH, 21 AIS patients, and 21 controls. These were evaluated at hospital admission (T0) and after 96 h (T96) from admission. (3) Results: At T0, circulating miRNAs were five-times up-regulated in AIS patients, tending to decrease at T96. By contrast, in the acute ICH group, circulating miRNAs were significantly increased at both T0 and T96. Moreover, a significant decrease was observed in serum VEGF-A levels at T0 in AIS patients, tending to increase at T96. Conversely, in acute ICH patients, the levels of VEGF-A were significantly decreased at both T0 and T96. (4) Conclusions: The absence of a reduction in circulating miRNAs (195-5p and -451a), reported in acute ICH subjects after 96 h from hospital admission, together with the absence of increment of serum VEGF-A, may represent useful biomarkers indicating the severe brain damage status that characterizes acute ICH patients.
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5
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Grabovoy A, Yaremenko L, Shepelev S. EXPRESSION OF SYNAPTOFYSIN AND VEGF IN THE SENSOMOTOR CORTEX DURING THE CAROTID ARTERY LIGATION, THE BRAIN ANTIGEN SENSITIZATION AND THEIR COMBINATIONS. WIADOMOSCI LEKARSKIE (WARSAW, POLAND : 1960) 2022; 75:2256-2261. [PMID: 36378705 DOI: 10.36740/wlek202209214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
OBJECTIVE The aim: To study changes of the expression of synaptophysin (Syn) and vascular endothelial growth factor (VEGF) in neurons of the sensorimotor cortex (SMC) to reveal after unilateral ligation of the carotid artery, sensitization with brain antigen and their combination. PATIENTS AND METHODS Materials and methods: Experimental animals - Wistar rats (260-290 g). Experimental models: mobilization of the left common carotid artery, ligation of the indicated artery, sensitization with cerebral antigen, combination of sensitization with cerebral antigen and ligation of the carotid artery. Methods: immunohistochemistry, quantitative densitometric assessment. RESULTS Results: Dyscirculatory disorders of cerebral blood supply during unilateral mobilization or ligation of the common carotid artery, sensitization with cerebral antigen lead in rats to a transient decrease in synaptophysin expression and phase changes in VEGF expression in the SMC from the lesion side. These changes occur in the absence of morphological changes in the cerebral cortex. CONCLUSION Conclusions: The absence of morphological changes in the SMC in the short term (10-30 days) after minor trauma to the common carotid artery (separation from the bed and n.vagus) or its ligation is accompanied by a transient decrease in Syn expression and some increase in VEGF, which may reflect a violation of synaptic function and the general metabolic activity of neurons. Sensitization with a brain antigen, leading to an increase in the level of anti-brain antibodies and immune complexes in the blood of rats, can act as an independent damaging factor for the brain, and also potentiates and prolongs changes caused by impaired blood circulation.
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6
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Fang J, Chopp M, Xin H, Zhang L, Wang F, Golembieski W, Zhang ZG, He L, Liu Z. Plasminogen deficiency causes reduced angiogenesis and behavioral recovery after stroke in mice. J Cereb Blood Flow Metab 2021; 41:2583-2592. [PMID: 33853408 PMCID: PMC8504962 DOI: 10.1177/0271678x211007958] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Plasminogen is involved in the process of angiogenesis; however, the underlying mechanism is unclear. Here, we investigated the potential contribution of plasmin/plasminogen in mediating angiogenesis and thereby contributing to functional recovery post-stroke. Wild-type plasminogen naive (Plg+/+) mice and plasminogen knockout (Plg-/-) mice were subjected to unilateral permanent middle cerebral artery occlusion (MCAo). Blood vessels were labeled with FITC-dextran. Functional outcomes, and cerebral vessel density were compared between Plg+/+ and Plg-/- mice at different time points after stroke. We found that Plg-/- mice exhibited significantly reduced functional recovery, associated with significantly decreased vessel density in the peri-infarct area in the ipsilesional cortex compared with Plg+/+ mice. In vitro, cerebral endothelial cells harvested from Plg-/- mice exhibited significantly reduced angiogenesis assessed using tube formation assay, and migration, as evaluated using Scratch assays, compared to endothelial cells harvested from Plg+/+ mice. In addition, using Western blots, expression of thrombospondin (TSP)-1 and TSP-2 were increased after MCAo in the Plg-/- group compared to Plg+/+ mice, especially in the ipsilesional side of brain. Taken together, our data suggest that plasmin/plasminogen down-regulates the expression level of TSP-1 and TSP-2, and thereby promotes angiogenesis in the peri-ischemic brain tissue, which contributes to functional recovery after ischemic stroke.
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Affiliation(s)
- Jinghuan Fang
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA.,Department of Neurology, West China Hospital of Sichuan University, Chengdu, PR China
| | - Michael Chopp
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA.,Department of Physics, Oakland University, Rochester, MI, USA
| | - Hongqi Xin
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
| | - Li Zhang
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
| | - Fengjie Wang
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
| | | | | | - Li He
- Department of Neurology, West China Hospital of Sichuan University, Chengdu, PR China
| | - Zhongwu Liu
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
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7
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Secondary Cerebellar Cortex Injury in Albino Male Rats after MCAO: A Histological and Biochemical Study. Biomedicines 2021; 9:biomedicines9091267. [PMID: 34572453 PMCID: PMC8468751 DOI: 10.3390/biomedicines9091267] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 01/17/2023] Open
Abstract
The present study focused on secondary injury following the middle cerebral artery (MCA) occlusion in rats not linked to the MCA’s feeding zone. This entity has been very rarely studied. Additionally, this study investigated the rates of expression of five fundamental angiogenic biomarkers called endoglin, vascular endothelial growth factors-A (VEGF-A), endothelin-1 (ET-1), 2granulocyte colony-stimulating factor (G-CSF), and angiopoietin-using the MCA occlusion (MCAO) model. The random allocation of twelve adult male albino rats was in two groups. As a sham control group, six rats were used. This group was subjected to a sham operation without MCAO. The MCAO group consisted of six rats that were subjected to MCAO operation. After three days, the rats were sacrificed. The cerebellar specimens were immediately processed for light microscopic examination. An angiogenic biomarkers multiplex assay from multiplex was used to assess endoglin levels, VEGF-A, ET-1, angiopoietin-2, and G-CSF in serum samples. Hematoxylin and eosin-stained sections showed that the cerebellar cortex of rats of the MCAO group was more affected than the sham control group. Furthermore, Nissl stain and immunohistochemical analysis revealed an apparent increase in the number of positive immunoreactive in the cerebellar cortex and an evident decrease in Nissl granules in Purkinje cells of the MCAO rats, in contrast to the control rats. In addition, there was a significant increase in angiogenic factors VEGF-A, ET-1, angiopoietin-2, and endoglin. Interestingly, there was an increase in the G-CSF but a non-significant in the MCAO rats compared to the control rats. Furthermore, there was a significant correlation between the angiopoietin-2 and ET-1, and between G-CSF and ET-1. VEGF-A also exhibited significant positive correlations with the G-CSF serum level parameter, Endoglin, and ET-1. Rats subjected to MCAO are a suitable model to study secondary injury away from MCA’s feeding zone. Additionally, valuable insights into the association and interaction between altered angiogenic factors and acute ischemic stroke induced by MCAO in rats.
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8
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Saleh M, Vaezi AA, Aliannejad R, Sohrabpour AA, Kiaei SZF, Shadnoush M, Siavashi V, Aghaghazvini L, Khoundabi B, Abdoli S, Chahardouli B, Seyhoun I, Alijani N, Verdi J. Cell therapy in patients with COVID-19 using Wharton's jelly mesenchymal stem cells: a phase 1 clinical trial. Stem Cell Res Ther 2021; 12:410. [PMID: 34271988 PMCID: PMC8283394 DOI: 10.1186/s13287-021-02483-7] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 06/26/2021] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Mesenchymal stem cells (MSCs) have received particular attention because of their ability to modulate the immune system and inhibit inflammation caused by cytokine storms due to SARS-CoV-2. New alternative therapies may reduce mortality rates in patients with COVID19. This study aimed to assess the safety and efficacy of injecting intravenous Wharton's jelly-derived MSCs in patients with COVID-19 as a treatment. METHODS In this study, five patients with severe COVID-19 were treated with Wharton's jelly-derived mesenchymal stem cells (150 × 106 cells per injection). These patients were subject to three intravenous injections 3 days apart, and monitoring was done on days 0, 3, 6, and 14 in routine tests, inflammatory cytokines, and flow cytometry of CD4 and CD8 markers. A lung CT scan was performed on base and days 14 and 28. In addition, IgM and IgG antibodies against SARS-CoV-2 were measured before and after treatment. RESULTS The results showed that IL-10 and SDF-1 increased after cell therapy, but VEGF, TGF-β, IFN-γ, IL-6, and TNFα decreased. Routine hematology tests, myocardial enzyme tests, biochemical tests, and inflammation tests were performed for all patients before and after cell therapy on base and days 3, 6, and 14, which indicated the improvement of test results over time. COVID-19 antibody tests rose in 14 days after WJ-MSC injection. The total score of zonal involvement in both lungs was improved. CONCLUSIONS In patients, the trend of tests was generally improving, and we experienced a reduction in inflammation. No serious complications were observed in patients except the headache in one of them, which was resolved without medication. In this study, we found that patients with severe COVID-19 in the inflammatory phase respond better to cell therapy. More extensive clinical trials should be performed in this regard. TRIAL REGISTRATION IRCT, IRCT20190717044241N2 . Registered April 22, 2020.
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Affiliation(s)
- Mahshid Saleh
- Department of Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Abbas Vaezi
- Department of Internal Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Rasoul Aliannejad
- Department of Pulmonary and Critical Care, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.,Advanced Thoracic Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Ali Sohrabpour
- Associate Professor of Gastroenterology and Hepatology, Liver and Pancreatobiliary Diseases Research Center, Digestive Disease Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Mahdi Shadnoush
- Department of Clinical Nutrition, Faculty of Nutrition & Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vahid Siavashi
- Department of Clinical Pathology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Leila Aghaghazvini
- Associate Professor, Department of Radiology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Batoul Khoundabi
- Iran Helal Institute of Applied-Science and Technology, Research Center for Health Management in Mass Gathering, Red Crescent Society of the Islamic Republic of Iran, Tehran, Iran
| | - Shahriyar Abdoli
- Pasteur Institute of Iran, National Cell Bank of Iran, Tehran, Iran
| | - Bahram Chahardouli
- Hematology, Oncology, and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Iman Seyhoun
- Department of Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Neda Alijani
- Department of Infectious Diseases, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.
| | - Javad Verdi
- Department of Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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9
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Hsu M, Laaker C, Sandor M, Fabry Z. Neuroinflammation-Driven Lymphangiogenesis in CNS Diseases. Front Cell Neurosci 2021; 15:683676. [PMID: 34248503 PMCID: PMC8261156 DOI: 10.3389/fncel.2021.683676] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 05/05/2021] [Indexed: 11/13/2022] Open
Abstract
The central nervous system (CNS) undergoes immunosurveillance despite the lack of conventional antigen presenting cells and lymphatic vessels in the CNS parenchyma. Additionally, the CNS is bathed in a cerebrospinal fluid (CSF). CSF is continuously produced, and consequently must continuously clear to maintain fluid homeostasis despite the lack of conventional lymphatics. During neuroinflammation, there is often an accumulation of fluid, antigens, and immune cells to affected areas of the brain parenchyma. Failure to effectively drain these factors may result in edema, prolonged immune response, and adverse clinical outcome as observed in conditions including traumatic brain injury, ischemic and hypoxic brain injury, CNS infection, multiple sclerosis (MS), and brain cancer. Consequently, there has been renewed interest surrounding the expansion of lymphatic vessels adjacent to the CNS which are now thought to be central in regulating the drainage of fluid, cells, and waste out of the CNS. These lymphatic vessels, found at the cribriform plate, dorsal dural meninges, base of the brain, and around the spinal cord have each been implicated to have important roles in various CNS diseases. In this review, we discuss the contribution of meningeal lymphatics to these processes during both steady-state conditions and neuroinflammation, as well as discuss some of the many still unknown aspects regarding the role of meningeal lymphatics in neuroinflammation. Specifically, we focus on the observed phenomenon of lymphangiogenesis by a subset of meningeal lymphatics near the cribriform plate during neuroinflammation, and discuss their potential roles in immunosurveillance, fluid clearance, and access to the CSF and CNS compartments. We propose that manipulating CNS lymphatics may be a new therapeutic way to treat CNS infections, stroke, and autoimmunity.
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Affiliation(s)
- Martin Hsu
- Neuroscience Training Program, University of Wisconsin Madison, Madison, WI, United States
| | - Collin Laaker
- Neuroscience Training Program, University of Wisconsin Madison, Madison, WI, United States
| | - Matyas Sandor
- Department of Pathology and Laboratory Medicine, University of Wisconsin Madison, Madison, WI, United States
| | - Zsuzsanna Fabry
- Department of Pathology and Laboratory Medicine, University of Wisconsin Madison, Madison, WI, United States
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10
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Rahman Z, Dandekar MP. Crosstalk between gut microbiome and immunology in the management of ischemic brain injury. J Neuroimmunol 2021; 353:577498. [PMID: 33607506 DOI: 10.1016/j.jneuroim.2021.577498] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 12/30/2020] [Accepted: 01/21/2021] [Indexed: 02/06/2023]
Abstract
Ischemic brain injury is a serious neurological complication, which accrues an immense activation of neuroinflammatory responses. Several lines of research suggested the interconnection of gut microbiota perturbation with the activation of proinflammatory mediators. Intestinal microbial communities also interchange information with the brain through various afferent and efferent channels and microbial by-products. Herein, we discuss the different microelements of gut microbiota and its connection with the host immune system and how change in immune-microbial signatures correlates with the stroke incidence and post-injury neurological sequelae. The activated inflammatory cells increase the production of proinflammatory cytokines, chemokines, proteases and adhesive proteins that are involved in the systemic inflammation, blood brain barrier disruption, gut dysbiosis and aggravation of ischemic brain injury. We suggest that fine-tuning of commensal gut microbiota (eubiosis) may regulate the activation of CNS resident cells like microglial, astrocytes, mast cells and natural killer cells.
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Affiliation(s)
- Ziaur Rahman
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, India
| | - Manoj P Dandekar
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, India.
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11
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Shear A, Nishihiro S, Hishikawa T, Hiramatsu M, Sugiu K, Yasuhara T, Date I. Cerebral circulation improves with indirect bypass surgery combined with gene therapy. Brain Circ 2019; 5:119-123. [PMID: 31620658 PMCID: PMC6785951 DOI: 10.4103/bc.bc_33_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 08/28/2019] [Accepted: 09/02/2019] [Indexed: 02/06/2023] Open
Abstract
Angiogenesis involves new blood vessels sprouting from preexisting blood vessels. This process may serve to improve brain circulation. Moyamoya disease (MMD) is a cerebrovascular disorder causing intracranial stenosis which significantly reduces the blood supply to the brain. Mainly stroke is the first symptom of the disorder, so treatments that reduce the risk of stroke are used for patients with MMD. To prevent stroke for those with chronic cerebral hypoperfusion, more blood needs to flow to the brain, which was thought to be achieved by enhancing angiogenesis. Indirect bypass surgery, such as encephalo-myo-synangiosis (EMS), is used for revascularization. However, EMS alone sometimes cannot provide enough circulation to avoid ischemic strokes. The current study examined if EMS combined with high-mobility group box-1 (HMGB1) and vascular endothelial growth factor (VEGF) enhanced angiogenesis and increased cerebral circulation. The results indicated that HMGB1 administered with EMS increased angiogenesis through a VEGF-dependent mechanism. In addition, exercising and stem cell transplantation possess possible means to increase angiogenesis. Overall, EMS with gene therapy, maintaining fitness, and stem cell utilization may prevent or help one recover from stroke by enhancing brain angiogenesis. Thus, these treatments may be applicable for patients with MMD. This paper is a review article. Referred literature in this paper has been listed in the references section. The datasets supporting the conclusions of this article are available online by searching various databases, including PubMed.
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Affiliation(s)
- Alex Shear
- Department of Neurosurgery and Brain Repair, College of Medicine, University of South Florida Morsani, Tampa, FL, USA
| | - Shingo Nishihiro
- Department of Neurological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Tomohito Hishikawa
- Department of Neurological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Masafumi Hiramatsu
- Department of Neurological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Kenji Sugiu
- Department of Neurological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Takao Yasuhara
- Department of Neurological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Isao Date
- Department of Neurological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
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12
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Bonsack B, Borlongan MC, Lo EH, Arai K. Brief overview: Protective roles of astrocyte-derived pentraxin-3 in blood-brain barrier integrity. Brain Circ 2019; 5:145-149. [PMID: 31620663 PMCID: PMC6785941 DOI: 10.4103/bc.bc_37_19] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 08/25/2019] [Accepted: 09/02/2019] [Indexed: 01/12/2023] Open
Abstract
Stroke is one of the world's leading causes of mortality and morbidity. Greater understanding is required of the underlying relationships in ischemic brains in order to prevent stroke or to develop effective treatment. This review highlights new findings about the relationship of blood–brain barrier with astrocytes, pentraxin-3 (PTX3), and other factors expressed during or after ischemic stroke. These are discussed with respect to their ameliorative or deleterious effects. These effects are measured in vivo in animal models as well as in vitro in cell cultures. Evidence was found to suggest that astrocytes play a key role in stroke by expressing PTX3, which, in turn, enhances endothelial tightness, increases tight junction proteins, and inhibits vascular endothelial growth factor. The role of astrocytes and PTX3 is examined in relation to hypoxic stress and conditioning as well as mitochondrial transfer. Astrocytes and PTX3 are placed in the context of brain circulation and related areas.
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Affiliation(s)
- Brooke Bonsack
- Center of Excellence for Aging and Brain Repair, College of Medicine, University of South Florida Morsani, Tampa, FL, USA
| | - Mia C Borlongan
- Center of Excellence for Aging and Brain Repair, College of Medicine, University of South Florida Morsani, Tampa, FL, USA
| | - Eng H Lo
- Department of Radiology, Neuroprotection Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Department of Neurology, Neuroprotection Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Ken Arai
- Department of Radiology, Neuroprotection Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Department of Neurology, Neuroprotection Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Citicoline affects serum angiostatin and neurospecific protein levels in patients with atrial fibrillation and ischemic stroke. UKRAINIAN BIOCHEMICAL JOURNAL 2019. [DOI: 10.15407/ubj91.05.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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Wei W, Wu D, Duan Y, Elkin KB, Chandra A, Guan L, Peng C, He X, Wu C, Ji X, Ding Y. Neuroprotection by mesenchymal stem cell (MSC) administration is enhanced by local cooling infusion (LCI) in ischemia. Brain Res 2019; 1724:146406. [PMID: 31454517 DOI: 10.1016/j.brainres.2019.146406] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 08/20/2019] [Accepted: 08/23/2019] [Indexed: 01/15/2023]
Abstract
OBJECTIVE The present study aimed to determine if hypothermia augments the neuroprotection conferred by MSC administration by providing a conducive micro-environment. METHODS Sprague-Dawley rats were subjected to 1.5 h middle cerebral artery occlusion (MCAO) followed by 6 or 24 h of reperfusion for molecular analyses, as well as 1, 14 and 28 days for brain infarction or functional outcomes. Rats were treated with either MSC (1 × 105), LCI (cold saline, 0.6 ml/min, 5 min) or both. Brain damage was determined by Infarct volume and neurological deficits. Long-term functional outcomes were evaluated using foot-fault and Rota-rod testing. Human neural SHSY5Y cells were investigated in vitro using 2 h oxygen-glucose deprivation (OGD) followed by MSC with or without hypothermia (HT) (34 °C, 4 h). Mitochondrial transfer was assessed by confocal microscope, and cell damage was determined by cell viability, ATP, and ROS level. Protein levels of IL-1β, BAX, Bcl-2, VEGF and Miro1 were measured by Western blot following 6 h and 24 h of reperfusion and reoxygenation. RESULTS MSC, LCI, and LCI + MSC significantly reduced infarct volume and deficit scores. Combination therapy of LCI + MSC precipitated better long-term functional outcomes than monotherapy. Upregulation of Miro1 in the combination group increased mitochondrial transfer and lead to a greater increase in neuronal cell viability and ATP, as well as a decrease in ROS. Further, combination therapy significantly decreased expression of IL-1β and BAX while increasing Bcl-2 and VEGF expression. CONCLUSION Therapeutic hypothermia upregulated Miro1 and enhanced MSC mitochondrial transfer-mediated neuroprotection in ischemic stroke. Combination of LCI with MSC therapy may facilitate clinical translation of this approach.
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Affiliation(s)
- Wenjing Wei
- China-America Institute of Neuroscience, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA; Department of Research & Development Center, John D. Dingell VA Medical Center, Detroit, MI, USA
| | - Di Wu
- China-America Institute of Neuroscience, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Yunxia Duan
- China-America Institute of Neuroscience, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Kenneth B Elkin
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Ankush Chandra
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Longfei Guan
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA; Department of Research & Development Center, John D. Dingell VA Medical Center, Detroit, MI, USA
| | - Changya Peng
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA; Department of Research & Development Center, John D. Dingell VA Medical Center, Detroit, MI, USA
| | - Xiaoduo He
- China-America Institute of Neuroscience, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Chuanjie Wu
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Xunming Ji
- China-America Institute of Neuroscience, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China.
| | - Yuchuan Ding
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA; Department of Research & Development Center, John D. Dingell VA Medical Center, Detroit, MI, USA
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